Waves X-Hum was developed to address the persistent and often complex issue of low-frequency noise in audio recordings, particularly hum, rumble, and DC offset. These problems can significantly degrade the quality of both analog and digital recordings, live sound mixes, and broadcast signals. Traditional EQ tools or high-pass filters often fail to isolate the noise effectively without sacrificing the musicality of the bass frequencies. X-Hum was created to provide a precise, transparent solution that surgically removes problematic frequencies while preserving the low-end punch essential to high-quality audio. By integrating eight precision notch filters and a high-pass filter, the plugin targets common issues like 50/60 Hz electrical hum and its harmonics, mechanical rumble, and offset bias—all without introducing latency or heavy CPU load. It fills a critical need in professional audio environments where pristine sound is a must, even when the source material is compromised.